GSXR Throttle Body Conversion

chris900f · Posted: Sat Jun 18, 2005 2:52 pm Post subject: GSXR Throttle Body Conversion

2003 gsxr600 injection bodies. eBay $75.00US no one even bid against me...silly me

chris900f · Posted: Sat Jun 18, 2005 2:54 pm Post subject:

they have ungodly weird servo motor apparatus driving secondary "choke-like" plates

chris900f · Posted: Sat Jun 18, 2005 2:56 pm Post subject:

ahhhh, but the 38mm size fit nicely with the stock manifolds

chris900f · Posted: Sat Jun 18, 2005 2:58 pm Post subject:

Also, they are spaced 80mm...those long brassy colored bolts hold everything together.

chris900f · Posted: Sat Jun 18, 2005 3:01 pm Post subject:

get rid of this motor thingy

chris900f · Posted: Sat Jun 18, 2005 3:03 pm Post subject:

just keep taking it apart and voila! no more steeeeekning chokey plates!

chris900f · Posted: Sat Jun 18, 2005 3:05 pm Post subject:

tape up the big holes...might want to press out those nice bearings though!

chris900f · Posted: Sat Jun 18, 2005 3:06 pm Post subject:

good old JB. Nice and slow moving, won't lift the masking tape

chris900f · Posted: Sat Jun 18, 2005 3:10 pm Post subject:

I'm gettin a little sloppy on this side

chris900f · Posted: Sat Jun 18, 2005 3:11 pm Post subject:

this picture was supposed to show how nice and smooth the patch is.

chris900f · Posted: Sat Jun 18, 2005 3:14 pm Post subject:

get ready to spend $5.00 for 1M 6mm threaded "ready-rod" and 12 nuts 12 washers (extra).

chris900f · Posted: Sat Jun 18, 2005 3:16 pm Post subject:

the best fit is upside down. The body which had the motordrive will be carb 4. Unless you want the big ugly throttle mechanism on the outside, and custom length cables. The mechanism body becomes body 3 Now you are saying wait, wait...but I know yes, the injectors fire up, and the butterfies open "backwards"....oh well?

chris900f · Posted: Sat Jun 18, 2005 3:20 pm Post subject:

my first attempts at an extension..but a better solution was lurking.

chris900f · Posted: Sat Jun 18, 2005 3:22 pm Post subject:

All you need to do to get "close" is increase the space between the center bodies by 20mm. This early attempt works, but would not be safe, as it is "push-only" mean it could get stuck open.

chris900f · Posted: Sat Jun 18, 2005 3:24 pm Post subject:

1st mock up with cable working. I'm guessing the hot set-up is low bars, and standard length cables You can see that the injectors/rail fit nicely, and this is the only configuration where the cable mechanism will work with normal cables. Possible to get the CB choke cable to work the fast idle toggle? (yes I think so.)

chris900f · Posted: Sat Jun 18, 2005 3:29 pm Post subject:

Here's the much improved mechanism, but shy the ear extension. Still this is pretty robust. The spring clamp is from body 1

Body 1 keeps its spring, using the dog from the choke motor "sync" assembly as retainer

chris900f · Posted: Sat Jun 18, 2005 3:32 pm Post subject:

Ouch! this is where is starts getting interesting

chris900f · Posted: Sat Jun 18, 2005 3:34 pm Post subject:

Mocked with injectors and 20mm machined bridge piece ..off to Wally's tomorrow. See you in months

chris900f · Posted: Sat Jun 18, 2005 3:44 pm Post subject:

Since these pic's were taken, the fuel rail has been welded successfully but the drive mechanism still requires a small extension to be welded. Its a simple job that Wally will do during the install. I'll try and post a shot of the welded rail asap.

79cb750f · Posted: Sat Jun 18, 2005 4:03 pm Post subject:

You Sir, are a sick bastard, and I mean that with the utmost respect. NICE! Cool

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